Hydrocarbon-generator



M. S. YEAGER. HYDROCARBUN GENERATOR. APPLICATION HLED JAN.29.1919.

1 349,9 32 Patented Aug. 17, 1920.

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ATTORNEY 1 unnies sun-seem, or

I L; nection with hydro-carbon burners.

UNITED STAT PATENT OFFICE.

SAN 'FRANCISCQ, CALIFORNIA, ASSIGNOR TO THE COLMAR rw ji cemnamr, orsm rmmcxsco, onmronnm, A GORPORATION or cansome. j

5 and State of Cal'iifornia have invented new and :useful Improvements in Hydrocarbon- Generators, of which the following is a specification.

, invention pertains to that type oi 10 generators usually employed in generatiitig gases from low grade fuels for use in conmain object of my invention is to provide forthe unequal contraction ofthe metalliegenerating tube and valve closure rod, whereby to? eliminate the accidental closure of the generators discharge orifice by its valveclosure when the flow of gas therefrom has been partially reduced in volume.

A further object is to provide a valve closure construction that will eiliciently cleanse the generator orifice on an operation of the valve closure rod.

Further obj ects will be apparent from the following" description, reference being had to the annexed drawings forming a part of the specification, in which,

Figured is a plan view of my generator showing it connected to a hydro-carbon burner.

Fig. 2- is a longitudinal section of a hydro-carbon burner as shown in Fig. 1, with my generator in place thereon.

Fig. 3- is a greatly enlarged longitudinal section of my generator- Fig. isan enlarged transverse sectional detail of the generator taken on line 4-4 of the drawings. 1

Fig. 5- is an enlarged sectional detail of a modified form of my generator, showingthe gas outlet and closure valve.

. i Fig. 6- is a cross section taken on'line 66 of Fig. 5. I

Fig. 7-'is. a detail sectional view of a modified form of my improved generator.

' FigJ is a cross sectional view of the form illustrated in Fig. 7 taken on line of said figure. i

Heretofore a great deal of trouble has burners by reason of the unequal contrac- Specification of Letters Patent.

been experiencedin operatinghydro-carbon HYnnocAnBoN-eEnnnAron.

Patented Aug. 1'7, 1920.

Application filed January 29, 1919. Serial No. 273,832.

tions of the metals forming the valve rod and generator tube, especially when the generatorhas been nearly shut off, the generatnetube or casing cooling. more quickly than thevalve closure rod often times completely closing the gas outlet orifice and shutting oil the burner.

By means of my present invention I am enabled to obviate the above recited disadvantages, so that a sudden cooling of the generator casing will not aii'ect the placement of the valve closure, and thereby accidentally shut off the flow of gas to the burner.

I have illustrated my improved generator in connection with a hydro-carbon burner of special construction, but it may be employed with equal facility with burners of other constructions.

Referring more specifically to the drawings, and especially to the generator construction. lll designates a cylindrical tube or casing, preferably formed of steel, and of a length best suited to the burner to which it is applied. The casing is externally screw threaded on one end for the re ception of a fuel inlet fitting 11, provided with a packing gland 12 of usual form, and a fuel inlet opening 13 which is connected to a source 01 fuel supply, not shown. The fuel discharge end of the generator is internally threaded for the reception of a screw threaded plug 14 provided units outer face with a wrench hold lug l5. and having a centrallywlisposed gas outlet opening 16 passing therethrough. The outer end oi opening 16 terminates in a small discharge orifice l7, and directly to the rear of said orifice the outlet is of conical form for a short distance to accommodate the conical closure end 18 of a valve rod 19, the rest of the distance the outlet assuming a cylindrical form. The rear or inner portion 20 of plug 14 is of reduced diameter to form an annular space 21 between the inner peripheralsiirface of the casing and its periphery for the passage of generated gases to the jgenerator outlet orifice. The bore of por- "tion 20 of plug 14 is threaded for the reception of the threaded outer end of valve rod 19, said portion forming a bearing for the valve rod when mounted therein. Directly to the rear of the enlarged portion ol plug 1-1 are oppositely disposed gas outlet openings 22, 23, transversely disposed which communicate with the gas outlet bore 16 of the. closure plug, as best shown in Fig. 3 of the drawings.

That portion of the valve rod 19 that lies directly bark of the conical end, and which extends rearwardly lo the threaded portion of the rod is square in form as shown at 2* its diagonal diameters being substantially the same as the diameter ol the cylindrimil portion of outlet bore in which it operates. the edges 25 acting as scrapers for the removal oi any carbon deposits or scale when the valve rod is operated, and at the same time permitting a free flow of generated gases through the outlet to its discharge orifice.

l y adjustably mounting the valve rod 19 in a bearing formed at the discharge end of the generator. instead of the fuel inlet end as in most constructions, i am enabled to maintain the initial adjustment of the valve in the generator outlet, especially when the same is nearly closed and the burner is operating on a minimum amount of fuel, as the distance from the threaded bearing portion of the valve rod to its tip is so slight that the contraction of the generator casing when cooling will not affect the adjustment of the valve in the gas outlet. The valve rod is provided with the usual hand operating wheel 26, secured thereto in any well known manner.

In the form illustrated in Figs. 5 and '5, the plug is of the same diameter throughout its length, the outlet bore 31 being substan tially the same as in the preceding construction heretofore described, with the exception that instead of reducing the inner portion of the plug and providing transversely disposed gas outlet slots. l have provided in clined outlet bores 32, the inner end of said bores communicating with the enlarged threaded portion 33. of the gas outlet bore. the threaded portion ll of the valve rod 19 engaging the threaded portion of the plug.

Figs. 7 and 8 of the drawings illustrate another generator outlet construction quite similar to the form illustrated in Figs. 3 and 4 oi" the drawings. In this form the outlet end of the generator tube 10 is internally threaded for the reception of an outlet plug 40. identical in all respects to the enlarged portion of the outlet plug 14 shown in the other mentioned form with the exception that this form is not provided with a valve rod bearing formed integrally therewith. Mounted within the threaded generator tube 10, and directly to the rear of plug 40, and spaced therefrom is a valve rod bearing 41 that is provided with a contrally disposed threaded aperture for the reception of the threaded port-ionoitlievalve rod 19. Bearing all is provided onits periphery with a plurality of notches or reeesses 42, for the passageof genemt dgiw to the discharge bore of ping .40. means of the above described construnfiinla, E am enabled to properly adjust the bearing 41 so that the flow of gas to the apertured plug will not be restricted.

in the drawings I have illustrated my improved generator mounted. on a hydro-carbon burner 35, which is shown as consisting of a burner head substantially rectangular in configuration, and provided on each of its longitudinally extending sides with burner slots 36, a plurality of burner slots 37 centrally disposed and extending longitudinally of the burner head are formed therein for the purpose of heating thegenorator during the operation of the burner. The generator is located directly above the burner slots 37 in bearings 38, the discharge end of the generator opening into the gas mixing chamber 39 of the burner head.

From the foregoing description it will be at once apparent that I have produced a gas generator construction that will operate elliciently under all conditions, all danger of the accidental closure of valve by a contraction of the metal members of the burner when the burner flames have been turned down to the minimum being eliminated.

It will also be observed that by forming that portion ol the valve rod that enters the gas outlet bore of the generator square in cross section, all scale and carbon will be readily removed in an operation of the valve rod. the force of the gas passing through the generator when in operation-eflectualiy'forcing the loosened scale and carbon outwardly therefrom.

What l claim is:

i. In a gas generator. a cylindrical casing. a gas outlet plug in the discharge end of said casing. a bearing formed integrally with the inner end of said plug and being provided with a screw threaded aperture therethrough, the diameter oi said bearing being less than the diameter of the. ping, whereby to form an annular passage for the gas generated by said generator when the plug 'is mounted therein. said bearing being provided with a pair of inlet opening-s, said openings communicating with the ham et said plug, a valve rod mounted within said casing and being in screw threaded engagement with the threadedleearing formed on the plug, and means to operate said valve rod to open or close the discharge outlet formed in the plug.

2. Tn a gas generator, a generator tube having a fuel inlet leading thereto, a gas outlet plug mounted in the discharge end of said tube, a valve rod bearing formed in tegral with the inner end of said outlet plug, said bearing being of less diameter than the 5 outlet plug and having gas inlet openings leading to the outlet bore of said gas outlet plug, a valve rod mounted in said bearing and engaging the bore of the outlet plug, and means to rotate said valve rod.

In witness that I claim the foregoing I 10 have hereunto subscribed my name this 14th day of December, 1918.

MATTHIAS S. YEAGER. 

